Acetylene-gas generator.



No. 734.634. PATBNTED JULY za, 1903.

u H. A. F. 13.11. TNNIES.

AGETYLENE GAS GENERATOR. APPLIOATION FILED MAY 22, 1901.

NOVMODBL.

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ATENT IHEiNRion AN'rbN FRANZ BERNHARD HERMANN TNNIEs, or GRONINGEN,

t NETHERLANDS.

VAC ETYLEN E-GS G EN ERATOR.'

SPECIFICATION forming part of Letters Patent No. 734,634, dated d'ly 28,1903i.

4Application filed May 22, 1901.` Serial No. 61,419. (No model.)

T all whom, it may concern:

Be it known that I, HEINRICH ANTON FRANZ BERNHARD HERMANN TNNIEs, asubject of the Queen of the Netherlands, and a resident of Groningen, inthe Kingdom of Netherlands, have invented certain new and usefulImprovements in Acetylene-Gas Generators, of which the following is aspecilication. 1o For the purpose of utilizing acetylene gas in smallilluminating bodies for the purpose of street traftcsuch as, forinstance, cycle and carriage lampsthe following conditions in theconstruction must be observed.4 The generator and burnerr apparatusshould occupy little space and be combined into a small body.` Thegenerator must', notwithstanding its smallness, be capable of supplyingthe gas to the burner for a considerable zo time ata uniform rate and ina pure condition. The generator should be rendered safe against dangerof explosion by tight and simple closing means so arranged as to renderthe interior of the generator readily accessible. All these conditionsare completely embodied in the acetylene-generator construct ed inaccordance with my invention, and in order that the nature of myinvention may be understood I will describe the same by 3o way ofexample as ,applied to a cycle-lamp, although it is to be wellunderstood that Ido not limit the application of my said inventionthereto.

In the accompanying drawing I have shown a sectional elevation of myimproved acetylene-generator in combination with a cyclelamp.

According to this invention the generator is formed with `four mainchambers commu- 4o nicating with each *other-Vize., the waterchamber a,the carbid-chamber b, the gascollecting or gasometer chamber c for thegenerated acetylene gas,A and a separate gaspassage chamber d betweenthe carbid-chamber b and the collecting-chamber o. The gaspassagechamber d possesses peculiar features. It forms an annular jacket aroundthe water-chamber @,which is advantageously funnel-shaped,and opens atits lower end into 5o the cover of the carbid-chamber b and communicatesat its upper end with the gas-collecting chamber c through a smallopening e, provided at the farthest or remotest end from the burncrf.The narrow,although eX- tensive, passage of the gas-passage cham ber d5.5 entirely prevents water and impurities being carried into thecollectingchamber c and to the burnerf, so that there is no possibilityof the fine burner-holes becoming choked and the liame` extinguished.The gas-passage 6o chamber d therefore insures the proper supply ofacetylene gas in a pure condition to the burner.

In order that the supply of gas to the burner may be uniformly carriedon, I arrange the collecting-chamber c between the burnerfand the carbidor generating chamber b, and l further provide special means for closingthe water-supply to the carbid during tooexcessive generation of gas.Tothisend the 7o water-chamber a, which is preferably funnelshaped, isformed with a double bottom, of which the apex ot' the funnel forms thelower bottom, a second or false bottom h being provided above same, soas to form a small space or chamber g. The bottom and the apex have anoutlet hole or orifice h and g', re spectively, and in the upper hole h'is iitted a needle-valve t', adapted to be so adjusted as to eitherclose the aperture h entirely or 8o to allow more or less water to dripthrough. Each water-drop falls on the lower bottom t'. e., into theapeX--and only escapes through theV opening g' of this latter when thegaspressure in the carbid-chamber b allows it to do so. After thegas-pressure reaches a certain height the water-drop is retained abovethe lower opening g by the pressure of the gas, and thus also away fromcontact with the carbid. In this manner the water-supply is 9otemporarily interrupted until the gas-pressure has been sufficientlyreduced. This mode of automatic regulation of the water-supply cannot beeected with a single bottom opening arranged immediately beneaththewater, for the reason that the direct pressure 4of the water columnabove causes the water to drip, the gas-pressure being insulicient toprevent it, whereas with my improved arrangement the pressure of the gasgenerated is caroo pable of retaining separate water-drops which havefallen on the second bottom surface and are freed from the pressure ofthe water column above.

By the arrangement hereinbefore described the gas is generated for along time in a uniform manner and is supplied to the burner in a purecondition, while at the same time the construction is such as to providefor a safe and yet readily detachable connection between thecollecting-chamber c and the carbid-chamber b. V

The bottom c' of the gas-collecting chamber c, which at the same timeforms the cover of the carbid-cha1nber b, is formed with ascrew-threaded flange 7c and a groove k for the reception of an elasticpacking-ring Z. To the flange k is secured the internally-screwthreadedrim m of the box forming the carbid-chamber b. The rim 7c is providedwith a lip or channel m', adapted to carry a second packing-ringn toform a tight joint with the Iiange 7a of the cover, while thefirstdescribed packing-ring Z forms a tight joint with theinner rimrm'after the box forming the carbid-chamber has been screwed onto theflange k of the collecting-chamber c. This method of forming the jointfor the carbidchamber effectually prevents the escape of gas directly tothe exterior, while at the same time both the carbid-chamber and thegaspassage chamber are readily accessible for recharging with carbid orfor cleaning.

What I claim to be new, and desire to secure by Letters Patent, is-

l. An acetylene-lamp comprising a generator, a conical reservoir abovethe same having its outlet in the apex, and means for controlling theflow of Water from said reservoir to the generator; in combination witha gaschamber and au annular gas-passage surrounding the reservoir andcommunicating with said gas-chamber, substantially as and for thepurpose specified.

2. An acetylene-lamp comprising a gaschamber having a downwardly-Haringbottom and an axial conical opening, and a generator secured to thegas-chamber below its bottom; in combination with a conical reser- Voirof less diameter than the opening in the gaschamber and arranged axiallywithin said opening to form an annular gasfpassage, the apex of saidreservoir projecting axially into the generator, a port e in the innerwall of the gas-chamber near its upper end and a gas-delivery pipecarrying a burner fin the outer wall at or near the lower end of saidgas-chamber, substantially as and for the purpose set forth.

HEINRICH ANToN'rRANz BERNHARD HERMANN TONNIES.

Vitnesses:

GUs'rAv TNNIEs, MAX KAEMPFF.

